The final solid thus consists of blebs of silver scattered through a fine groundmass of eutectic mixture of silver and copper.
The final solid thus consists of large particles of sodium chloride dispersed through a fine groundmass consisting of eutectic mixture of sodium chloride and ice.
The rock of the Tower below this fault is somewhat altered; the groundmass is a light greenish gray, and the normally shiny crystals of feldspar have a dull earthy luster.
The megascopic differences are mostly referable to groundmass characters, the color of the rock being dependent upon the color and proportion of glassy base present.
The felted or hyalopilitic texture is the most common, and plagioclase is the principal groundmass constituent.
These lavas have groundmass textures that vary from almost holo-crystalline to glassy.
This petrographical study showed that "Mount Rainier is formed almost wholly of hypersthene andesite, with different conditions of groundmass and accompanied by hornblende and olivine in places.
In one andesite the abundance of these remnants of hornblende and also of augite anhedrons in the groundmass may justify the conclusion that this augite andesite is of derivative origin, of the class described by Washington.
Its occurrence in the groundmass of these rocks has also been alluded to.
Those before me show phenocrysts of plagioclase and sometimes of augite in a groundmass displaying a mesh-work of felspar-lathes, prismatic pyroxene, and much interstitial glass.
Pyroxene of thegroundmass ophitic or semi-ophitic.
Felspars of the groundmass short and stout (orthophyric).
The groundmass was originally spherulitic; but this structure is more or less disguised by the development of a mosaic of chalcedonic quartz.
This rock displays a few small phenocrysts of oligoclase and pyroxenes in a blurred glassy groundmass exhibiting the felspar and pyroxene microliths in process of development (sp.
Its groundmass displays felspar-lathes in flow-arrangement with a little interstitial glass.
Under the microscope they exhibit a grey crypto-crystalline groundmass showing very finely granular crystalline silica with the cracks and small cavities filled with more brightly polarising chalcedonic quartz.
The groundmass has a characteristic “pilotaxitic” appearance, the densely packed felspar-lathes averaging only ·05 mm.
The rock intermediate between the lower and upper portions of the flow is also intermediate in character, having a specific gravity of 2·77, whilst quite three-fourths of the groundmassare of smoky glass.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "groundmass" in a variety of sentences. We hope that you will now be able to make sentences using this word.
